Apparatus for applying heads to music-roll tubes



July 17, 1923. 11,462,305

w. SNYDER APPARATUS FOR APPLYING HEADS TO MUSIC ROLL TUBES Filed Nov. 21, 1921 ssneets-shect 1 Wlii" Snyder July 17, 1923.

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w. SNYDER APPARATUS FOR APPLYING HEADS TO MUSIC ROLL TUBES Filed Nov. '21, 1921' 5 Sheets-Sheet 5 v 3n uc-n'i'o'c Walfer Snyder Patented July 17, 1923..

' mean WALTER SNYDER, OF NEWARK, NEW JERSEY, ASSIGNOR OF ONE-HALF TO ROBERT L.

I HATFIELD, OF NEWARK, NEW JERSEY.

APPARATUS FOR APPLYING HEADS TO MUSIC-ROLL TUBES.

Application filed November 21, 1921. Serial No. 516,650.

To all whom it may concern:

Be it known that I, WALTER SNYDER, a citizen of the United States, and resident of Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Apparatus for Applying Heads to Music-Roll Tubes, of which the following is a specification.

My present invention relates to apparatus for applying heads to tubes in the production of rolls or spools such as are used for the perforated note sheets of automatic musical instruments.

The invention aims to provide a simple durable, economical and efficient machine for automatically applying the spool or roll heads to the tubes or bodies.

The invention further aims to provide a construction in which the heads will be applied without danger of twisting or distort ing the tubular bodies of the rolls which are usually constructed of paper or similar material.

With these and other objects in view the invention includes the novel features of construction and arrangement and combination of parts hereinafter described and particularly defined by the appended claims.

An embodiment of my invention is illustrated in the accompanying drawings in which- Figure 1 is a plan view of my improved apparatus or machine.

Fig. 2 is a side elevation of the same.

Fig. 3 is'a front elevation.

Figs. land 5 are sectional detail views on a larger scale showing the gripper devices and the associated operating means.

Figs. 6 and 7 are detail views of the gripper swinging means.

Figs. 8 to 8 inclusive are detail views illustrating the various positions occupied by the grippers during their cycle of movement.

Figs. 9 and 10 are detail views of the tube holding and conveying means.

Fig. 11 is a detail view of the tube holder or feeder; and

Fig. 12 is a detail view of the intermittent feed.

Generally stated, my invention includes means for holding a music roll tube in a fixed position, means for positioning flanged heads, having cylindric portions for entersupports 28.

ing the tube ends, adjacent the tube ends but with their axes perpendicular to the axis of the tube, and means for gripping the heads, swinging them into axial alignment with the tube, and moving them towards the tube to insert the cylindric portions in such ends, the heads being preferably rotated in opposite directions during such insertion.

In the preferred embodiment of my invention I provide intermittently moving carrier means for presenting the tubes to and successively holding them in such fixed position in the shape of a pair of endless chains 23 connected by cross bars, each carrying a pair of tube clamping aws 24:, 24, the former being rigidly carried by the chains, and the latter being pivotally mounted and placed under the tension of a spring 24 (Figs. 9 and 10) which tends to close the jaws upon the tube which is indicated at A, the jaws being opened at the proper timesto receive and discharge the tube in the manner hereinafter described.

The chains are supported at one end and intermittently moved by sprocket wheels 20 carried by a shaft 10 journaled in side frames 3 which are supported upon base frame members 1, 2. Fast on this shaft at one end is an intermittent gear 12, having for example three dwells or gear interruptions 12 (Fig. 12), which is designed to be intermittently driven by the coacting gear 11 having conveniently one prolonged dwell 11, said gear 11 being fast on continuously driven shaft 9 operated by any suitable prime mover, as for example an electric motor 6, through chain and sprocket gearing 6*, 7 and 8. At the opposite end of the machine the chains pass around idle sprockets 21 mounted on shaft 22.

The paper tubes A which constitute the bodies ofthe rolls and to which the flanged heads are to be applied, are preferably carried in a hopper or tube feeder28 preferably in the form of vertical inwardly facing channel'members to engage the tube ends outside the path of the clamping aws. The tubes are supported at the bottom and in the path of the clamping aws by L shaped (Fig. 11).

The movable jaws 24: are carried by a rock shaft 24* (Figs. 9 and 10) which is encircled by or forms a support for spring 24 having one end 0 bearing against a fixed part on the carrier of the stationary jaw and its other end a engaging a tail lever 24 which is designed to be swung in the proper direction to open the jaws at the proper time by fixed cams or curved tracks 26 and 27 at opposite ends of the machine. The former is designed to swing the movable jaws 24 out of the path of the lowermost tube of the feeder allowing the fixed jaws to sweep the said tube out of. same whereupon the movable jaws are released by the cam and caused to hold the tube by the pres sure of the spring.

After the heads have been applied the action of cam 27 on said tail lever 24 opens the jaws again allowing the completed roll or spool to be delivered to, for example, a discharge chute B.

A convenient means of positioning the flanged heads for application to the tubes is shown in the drawings in the shape of a pair of'endless belts15 having at suitable intervals openings 15 to receive the cylindrical portions of the heads A which maybe placed therein automatically or by hand, the belts and openings providing seats for the heads.

These belts pass around'idle pulleys 14 on a shaft 17 at one end supported by suitable standards 16 which, to avoid unduly extending the frame, may be in the shape of pedestals, though obviously the frame could be projected to afford bearings for the shaft 17.

At the opposite or delivery end of the machine the belts pass around pulleys 13 fast on intermittent driving shaft 10 which pulleys are provided with properly spaced knobs 18 i to engage the openings in the belts and prevent slipping thereof whereby the openings or head seats are maintained at all times in vertical'alignment with the tube clamps.

Idle pulleys 14 are arranged so that the upperportions of their peripheries are at a lower level-than the corresponding portions of the chain pulleys Fig. 2 conveniently by making them of smaller diameter, and both the pulleys 1'4 and 13 are located in vertical planes outsidethe planes of the said chain pulleys whereby the belts travel somewhat beyond or spaced from the tube ends. As the driving pulleys 18 are necessarily of the same diameter as the sprockets 20 in order that. the belts'and chains may travel at equal speeds, I provide depressor pulleys or. drums 19 underneath which the belts pass and whereby they are maintainedsin horizontal position until the rollers 19 are reached.

Fromthe foregoing it will be seen that the tubes are clamped near their ends and interf mittently moved forward step by step until they reach the assembling position where they are successively held infixed position long enough. for the heads to be removed from the synchronously moving belts and ap 'pliedto the-tube ends in the manner and by the mechanism which will now be described.

As this mechanism is duplicatedv on opposite sides of the machine-a specific description of one side will apply to the other also.

Parallel frame members 4 are located in planes transverse to the main frame, and in suitable bearings in the inner ends of these members and above the corresponding feed belt 15 is mounted a shaft or member 44 capable of oscillating through an arc of 90. This shaft has an enlarged portion provided with a tubular passage in which is located the cylindrical shank of a gripper device 43, Figs. 4 and 5 comprising a head having par allel lugs between which are pivoted bell crank levers 43* having outwardly extending notched fingers w to engage the flanges of the roll heads, and converging arms 00- which engage an annular groove in the projecting end of an operating rod 43 slidably mounted in a central bore of the gripper shank, the arrangement being such that when the rod is advanced the bell cran'ks are rocked to cause the gripper fingers to open, and, when retracted, to effect their closing.

Normally the rod 43 is retracted by a helical spring 48 located in an enlarged portion or counter bore of the rod passage, and confined betweena head on the rod and the base of the counter bore.

The shank of the gripper carrier 43 is also normally retracted by means of compression spring 48 as will be clear from Figs.'4'and 5.

At the time a tube has reached the head applying position the oscillatory member or shaft 44 will be so located that the grippers will be pointing directly downward as shown snaps into or engages the notches in the jaws,

whereupon the rod or plunger is lowered. Fig. 8 Said rod or plunger 41 is operated by arm 40 carried by rock shaft 39 which in turn is. operated by arm 38 having a roller 011 its end coacting with a cam 37 on cam shaft 30, as shown (partly in dotted lines) Figs. 2 and 3.

Cam shaft 30 may be driven in any suitable manner as by bevel gears 31, shaftiSQ journaled in bearing brackets 33, and sprocket 35 and chain 36 driven .by sprocket 34 on shaft 9 which extends to the opposite side of the, machine where it drives a similar train of'gearing, shaft 9 being driven from the motor in the manner already described.

The roll or tube head having been engaged with the gripper arms as above described the gripper carrier or shaft is then oscillated to swing the grippers throughan arc of 90 and bring the cylindric portion of the head into axial alignment with the tube end Figs. 4 and 8.

To accomplish this I provide the shaft or member 4A with a gear segment 50 with which meshes a rack 49 carried by a slide 49* moving in guides 4L7 and 48 and having at its rear end a roller Working in a cam groove in cam disc 45 carried by cam shaft 30 hereinbefore referred to.

The head having been brought into alignment with the tubethe next action is to insert the cylindric portion of the head into the tube end as shown in Figs. 5 and 8". This is accomplished by the longitudinal inward movement of the gripper shank which is effected by the sliding plunger 52, having a swivel head 52 to coact with the shank head and held normally retracted by compression springs 53 confined between a cross head 52 on the plunger and the frame part,

5 in which the plunger is guided. Cross head 52" has a pair of rollers 52 which coact with cams 51 on cam shaft 30, having the required contour to secure the desired move ment at the proper time.

I find it very advantageous to insert the heads with a twisting movement as this not onl serves to evenly distribute the glue which has been applied to either the heads or tube ends, but facilitates the entering of the head, and prevents injury to or dis tortion of the tube. I find it further advantageous to cause the grippers to rotate in reverse directions whereby they counter act each other and lessen the strain on the tube clamps thereby further reducing the liability of injury to the tubes.

This is accomplished by providing a helical tongue and groove connection between the gripper shanks and guide passages as clearly shown in Figs. 4 and 5.

The heads having been applied to the tube ends it is next necessary to disengage the grippers from the heads. This is accomplished by a push rod 55 slidably mounted in a central bore in the plunger 52 and non mally retracted by spring 55, the said push rod aligning with jaw operating rod 4' a and having a roller carrying forked head 55 located in a bifurcation or recess in the cross head and being actuated at the proper time by cam 54 on shaft 30.

The grippers having released the tube head Figs. 5 and 8 are retracted (Fig. 8 and swung down into position to engage the next head (Fig. S in the manner hereinbefore described, and the chains and belts are advanced to bring a fresh tube and set of heads into assembling position.

The glue may be applied in any suitable manner as by means of glue units conventionally indicated at 29 or it could be applied by hand.

While I have described the conveyers as chains and belts it will be understood that I do not confine myself to these specific carrying elements, belts and chains being well known equivalents of each other, and in fact my invention. is not confined to the use of endless carrying elements as other types could be substituted and various changes could be made without departing from the spirit of my invention.

Having thus described my invention, what I claim is:

1. Apparatus for applying flanged heads to roll tubes, comprising means for successively presenting and holding tubes in a fixed position, carrier means having seats for tube heads positioned adjacent the tube ends when the tube is in such fixed position, said seats having openings therethrough, gripper means, push rods acting through the openings in said seats to move the heads into engagement with said gripper means, and means for causing said gripper means to apply the heads to the tubes.

2. Apparatus for applying flanged heads to roll tubes comprising means for successively presenting and holding tubes in a fixed position, an endless carrier having seats for tube heads designed to be successively brought into proximity to the tube ends when in such fixed position, said seats having openings therethrough, gripper means, push rods acting through the openings in the seatsto move said heads into engagement with said gripper means, and means for causing said gripper means to apply the heads to the tubes.

3. Apparatus for applying flanged heads to roll tubes comprising an intermittently moving endless chain carrier having tube clamping means, a pair of belts having openings located on opposite sides of said carrier, drive pulleys for said belt having projections engaging said openings. said openings being relatively positioned opposite the tube clamps, and being adapted to receive the cylindric portions of the heads, and means for removing the headsfrom the belt ano inserting them in the tube ends.

4. In apparatus of the class described. means for holding a tube in fixed horizontal position. a carrier having a seat for a roll head, said carrier being movable to position the head'benea-th the roll end. a gripper device embodying spring pressed radially movable gripping arms, an oscillatory member in which said gripper device is slidingly mounted, said gripper device normally facing said carrier, cam controlled means for raising the head from its seat to engage the arms of the gripper device, means for the swinging of the oscilating member to bring the head in alignment with the tube end, and means for advancing the gripper device towards the tube end.

5. In apparatus of the class described,

means "for holding arolltube in fixed position, an oscillating member adjacent the tube end having a guideway, a head gripper device having .a shank slidably held in said guideway, means for swinging said oscillating member to move the gripper device to and from alignment with the tube end, and acam controlled plunger for acting on said shank when said gripper device is aligned with the tube end.

6. In apparatus of the class described means for holdinga roll tube in fixed hori Zontal position, a carrier fora roll head having a seat movable to a position below said tube end, an oscillatory member having a guide Way, a head gripper device having a shank slidably held in said guideway, a spring for holding said shank normally retracted, means for swinging said oscillating member from a position facing the carrier seat to aposition opposite the tube end, and

gcontrolled means acting on said shank to move the gripperdevice towards the tube end. 7 i

7. In apparatus of the class described means for holding a roll tube in fixed hori- Zontal position, a carrier for roll head having a seat movable to a position below said tube end, an oscillatory member having a cylindrical passage, a head gripper having a shank slidably held in said passage, said shank and the wall of said passage having an inter-engaging tongue and groove connection, a spring for holding said. shank normally retracted, means for swinging said oscillating member from a position faclng the'carrier seatto a position opposite the tube end, and controlled means acting on said shank to move the gripper device to shank in said member, and means ,fOI moving said gripper arm operating rod.

9. in apparatus of the class described, means for holding a roll tube'in fixed position, means for positioning aroll head, an oscillating member adjacent saidtube end having a passage, a gripper head'having a shank held in said passage, and having a helical tongue and groove engagementtherewith, said shank having an axial. passage, bell cranklevers'pivoted to said head having gripper arms to engage the roll head, a spring retracted rod in said axial passage having its end connected to'the other arms of said levers, means for swinging said oscillatory member into and out of alignment with the tube end, means for inserting a tube head in said gripper arms, means for reciprocating said shank to apply theroll head to the tube, and means for moving'said rod to disengage-the grippers.

10. In apparatus of the class described, means for holding a roll tube in fixed position, an oscillatingmember adjacent the tube end having a guidevvay, a head gripper device having' a shank slidably held in said guideway, means for swingingsaid oscillating member to move the gripper device to and from alignment with the tube end, and a cam controlled plunger for acting on said shank when said gripper device is aligned with the tubeend, and means for rotating said shank.

11. In apparatus of the class described, means for holding a roll tube in fixed position, a member adj a'ee'nt said tube endhaving a passage, a gripper head having a shank slidably held in said passage and having a helical tongue and groove engagement therewith, said shank having an axial passage, bell crank levers pivoted to said head having gripper arms for engaging a roll head, a rod in said axial passage having'its end connected to the other arms of said levers, spring mean's tending to hold said levers in head clamping position, cam controlled means for imparting rectilinear means for reciprocating said red. I

In testimony whereof, I atfix my signamovement to said shank, and cam controlled 

